A pickup truck hauling a trailer rolled off a 300-foot cliff, off of I-17 near the Sunset Point rest area.
The Department of Public Safety says 38-year-old Jason Bryan Kowalzyk of Globe was killed in the crash.
Kowalzyk was driving a Dodge pickup truck pulling an empty trailer.
Officers say the truck started weaving to the right side of the road before it went past the guardrail and fell another 300 to 400 feet over a cliff.
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